* {
  margin: 0;
  padding: 0;
  list-style: none;
}

body {
  /* background-color: #f8fafb; */
}

.header {
  border-bottom: 1px solid #ccc;
  margin-left: 35px;
  background-color: #fff;
  margin-right: 25px;
}

.header > ul {
  display: flex;
}

.header .header-title {
  padding: 10px;
  position: relative;
}

.header .header-title:nth-child(1) {
  margin-left: -10px;
}

.header .header-title.active::after {
  position: absolute;
  content: "";
  top: 100%;
  left: 0;
  background-color: #2e7eee;
  width: 100%;
  height: 1px;
  border: none;
  transform: translateY(-50%);
}

.container {
  width: 100%;
  /* margin: 0 auto; */
  background-color: #fff;
  margin-top: 20px;
}

.tree {
  padding: 15px 10px;
  background-color: #fff;
  margin-right: 25px;
}

.tree-node-content {
  padding: 5px 0;
}

.tree-node-content:hover {
  background-color: #f6f6f6;
}

.tree-node-content .tree-node-content-left .point-svg {
  opacity: 0;
  cursor: pointer;
  margin-right: 5px;
}

.tree-node-content:hover .tree-node-content-left .point-svg {
  opacity: 1;
}

.tree-node-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tree-node-content .config-svg {
  margin: 0 15px;
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.tree-node-content .tree-node-content-left {
  display: flex;
  align-items: center;
}

.tree-node-content .tree-node-content-right {
  display: flex;
  align-items: center;
  color: #a4a4a4;
  font-size: 12px;
}

.tree-node-content .tree-node-content-right .students-count {
}

.tree-node-content .tree-node-content-right .config {
  display: flex;
  align-items: center;
}

.tree-node-content .tree-node-content-right .config .doc-link {
  cursor: pointer;
  outline: none;
  color: #999;
  width: 98px;
  height: 35px;
  line-height: 35px;
  font-size: 16px;
  line-height: 35px;
  text-align: center;
  border: 1px solid #999;
  border-radius: 4px;
  background-color: transparent;
  margin-right: 5px;
}

.tree-node-content .tree-node-content-right .config .doc-link:hover {
  color: #fff;
  background: #2e7eee;
  border: 1px solid #2e7eee;
}

.tree-node-content .tree-node-tag {
  font-size: 14px;
  color: #a4a4a4;
  margin-right: 10px;
}

.tree-node-content .tree-node-label {
  font-size: 18px;
}

.hide {
  display: none;
}

.mouseover-active {
  background-color: #f2f2f2;
  border-bottom: 2px solid #2e7eee;
}
